Research And Implementation Of An Improved Mechanism For IPv6 Address Hopping Transmission

With the growing popularity of IPv6(Internet Protocol version 6)applications,IPv6's security issues also began to get people's attention.Due to generally used stateless auto configuration mechanism in IPv6 networks,the attacker will be able to obtain all the data traffic as long as he listens for a specific IPv6 address' data traffic.Existing IPv6 security mechanisms only encrypt the contents of the IPv6 packets which cannot protect the transmission channel at all.Although there is no chance for the attacker to access the encrypted contents directly,he can still get the identity of the host and steal the privacy information through traffic analysis on the network traffic.IPv6 address hopping transmission mechanism is able to take advantage of the large address space of IPv6,with IPv6 address hopping transmission mechanism,IPv6 data can be transmitted through a large variety of virtual channels composed with a large amount of IPv6 address pairs.There has been some researches on IPv6 address hopping transmission mechanisms,and a variety of IPv6 address hopping transmission related technologies have been proposed.This thesis will target the existing IPv6 address hopping transmission mechanisms,with IPv6 address hopping synchronization technologies as the core,and try to propose an improved IPv6 address hopping transmission mechanism as well as a deployment method for the IPv6 address hopping transmission.In this thesis,considering most of existing hopping synchronization mechanisms cannot achieve the requirements of high-frequency IPv6 addresses hopping,dynamic address chain and sliding address window has been applied to IPv6 address hopping synchronization and a new IPv6 address hopping synchronization mechanism was proposed which is designed to meet the requirements of high-frequency IPv6 addresses hopping.Further we proposed an improved IPv6 address hopping transmission mechanism based on dynamic address tunneling models and the corresponding implementation and deployment methods.In addition,we developed evaluation indicators and corresponding testing programs for the improved IPv6 address hopping mechanism,and also setup the required testing environment.Through testing on the prototype of this improved IPv6 address transmission,from the functions as well as high-frequency hopping ability,time-deviation tolerance capacity,flow dispersing ability and other aspects,we can verify that this mechanism can meet the design requirements.